A good silicon diode has the currentvoltage characteristic given in Problem 49 Let kT 0 025 eV (room temperature) and the saturation current I 0 1 nA (a) Show that for small reverse bias voltages, the resistance is 25 M (b) Find the dc resistance for a reverse bias of 0 5 V (c) Find the dc resistance for a 0 5 V forward bias What is the current in this case (d) Calculate the ac resistance dV dI for a 0 5 V forward bias

Question: A good silicon diode has the currentvoltage characteristic given in Problem 49. Let kT = 0.025 eV (room temperature) and the saturation current I 0

A "good" silicon diode has the current–voltage characteristic given in Problem 49. Let kT = 0.025 eV (room temperature) and the saturation current I₀ = 1 nA.

(a) Show that for small reverse-bias voltages, the resistance is 25 MΩ.

(b) Find the dc resistance for a reverse bias of 0.5 V.

(d) Calculate the ac resistance dV/dI for a 0.5-V forward bias.

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